unable open xterm

[Marty Jack]

On 05/09/2011 12:48 PM, Usuário do Sistema wrote:
> disregard my before email! sorry.
> 
> 
> I've just tried:
> 
> 1- export DISPLAY=:0.0
> 
> 2- xauth -f path list
> xauth:  creating new authority file path
> 
> but the same error occur when I run xterm
> 
> Warning: This program is an suid-root program or is being run by the root user.
> The full text of the error or warning message cannot be safely formatted
> in this environment. You may get a more descriptive message by running the
> program as a non-root user or by removing the suid bit on the executable.
> xterm Xt error: Can't open display: %s
> 
> I'dont know very well X Server! so...follow any questions:
> 
> 1- it's necessary a monitor plug in machine full time ?? ( I'm access
> the mechine by ssh and it hasn't monitor )
> 
> 2- I see nothing when I ran "xauth -f path list" neither path to the
> file cookie as you commented below only the message:
>          xauth:  creating new authority file path
> 
> 
> thank!
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 2011/5/9 Marty Jack <martyj19 at comcast.net>:
>>
>>
>> On 05/09/2011 11:50 AM, Usuário do Sistema wrote:
>>> Hi everyone,
>>>
>>> I'm trying open one session xterm on of the same machine that holds
>>> the X Server but occur a error.
>>>
>>> what I've done:
>>>
>>> 1- login in at the machine that holds the X server by ssh ( the
>>> Machine hasn't monitor )
>>>
>>> 2- ran the command export DISPLAY=0.0
>>>
>>> 3- ran the command xterm
>>>
>>> appear the error follow:
>>>
>>> Warning: This program is an suid-root program or is being run by the root user.
>>> The full text of the error or warning message cannot be safely formatted
>>> in this environment. You may get a more descriptive message by running the
>>> program as a non-root user or by removing the suid bit on the executable.
>>> xterm Xt error: Can't open display: %s
>>>
>>> I'm using the Red Hat Enterprise 5.6 on the machine and I need open
>>> one session xterm.
>>>
>>> why occur this error ? what I have do to open xterm session ?
>>>
>>> strangely it was work! out of the blue began appear the message above
>>> when I've ran xterm command.
>>>
>>> any tip it's welcome!
>>>
>>> thank
>>> _______________________________________________
>>> xorg at lists.freedesktop.org: X.Org support
>>> Archives: http://lists.freedesktop.org/archives/xorg
>>> Info: http://lists.freedesktop.org/mailman/listinfo/xorg
>>> Your subscription address: martyj19 at comcast.net
>>>
>>
>> One thing that looks wrong is it should be DISPLAY=:0.0, you're missing a colon.
>>
>> The second thing that might be wrong is authorization.  If your Xserver is started with an -auth switch, you need to export XAUTHORITY=some-path where that file contains the same session cookie that the server has and is readable by whatever process is trying to connect to the server.
>>
>> You can poke around with xauth -f path list to see what is in a cookie file if you need to.
>> _______________________________________________
>> xorg at lists.freedesktop.org: X.Org support
>> Archives: http://lists.freedesktop.org/archives/xorg
>> Info: http://lists.freedesktop.org/mailman/listinfo/xorg
>> Your subscription address: maiconlp at ig.com.br
>>
> 

Unfortunately I wasn't very clear.  You weren't meant to do the "xauth -f path list" blindly.  For one thing "path" was a variable you were supposed to provide a sensible value for, and this lists out an authority file you already have.  Read "man xauth".

So far you haven't done anything to create the authority file if you need one.  Do a "ps aux | grep X" and see what your Xserver is being started with.  If it has an -auth switch, you need to do something to get the contents of the file referenced by the -auth switch into a place where the user can read it and then set XAUTHORITY to point to it.